Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/m68k/kernel/setup.c |
| 3 | * |
| 4 | * Copyright (C) 1995 Hamish Macdonald |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * This file handles the architecture-dependent parts of system setup |
| 9 | */ |
| 10 | |
| 11 | #include <linux/config.h> |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/mm.h> |
| 14 | #include <linux/sched.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/fs.h> |
| 18 | #include <linux/console.h> |
| 19 | #include <linux/genhd.h> |
| 20 | #include <linux/errno.h> |
| 21 | #include <linux/string.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/bootmem.h> |
| 24 | #include <linux/seq_file.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/initrd.h> |
| 27 | |
| 28 | #include <asm/bootinfo.h> |
| 29 | #include <asm/setup.h> |
| 30 | #include <asm/irq.h> |
| 31 | #include <asm/io.h> |
| 32 | #include <asm/machdep.h> |
| 33 | #ifdef CONFIG_AMIGA |
| 34 | #include <asm/amigahw.h> |
| 35 | #endif |
| 36 | #ifdef CONFIG_ATARI |
| 37 | #include <asm/atarihw.h> |
| 38 | #include <asm/atari_stram.h> |
| 39 | #endif |
| 40 | #ifdef CONFIG_SUN3X |
| 41 | #include <asm/dvma.h> |
| 42 | #endif |
| 43 | |
| 44 | unsigned long m68k_machtype; |
| 45 | unsigned long m68k_cputype; |
| 46 | unsigned long m68k_fputype; |
| 47 | unsigned long m68k_mmutype; |
| 48 | #ifdef CONFIG_VME |
| 49 | unsigned long vme_brdtype; |
| 50 | #endif |
| 51 | |
| 52 | int m68k_is040or060; |
| 53 | |
| 54 | extern int end; |
| 55 | extern unsigned long availmem; |
| 56 | |
| 57 | int m68k_num_memory; |
| 58 | int m68k_realnum_memory; |
| 59 | unsigned long m68k_memoffset; |
| 60 | struct mem_info m68k_memory[NUM_MEMINFO]; |
| 61 | |
| 62 | static struct mem_info m68k_ramdisk; |
| 63 | |
| 64 | static char m68k_command_line[CL_SIZE]; |
| 65 | |
| 66 | char m68k_debug_device[6] = ""; |
| 67 | |
| 68 | void (*mach_sched_init) (irqreturn_t (*handler)(int, void *, struct pt_regs *)) __initdata = NULL; |
| 69 | /* machine dependent irq functions */ |
| 70 | void (*mach_init_IRQ) (void) __initdata = NULL; |
| 71 | irqreturn_t (*(*mach_default_handler)[]) (int, void *, struct pt_regs *); |
| 72 | void (*mach_get_model) (char *model); |
| 73 | int (*mach_get_hardware_list) (char *buffer); |
| 74 | int (*mach_get_irq_list) (struct seq_file *, void *); |
| 75 | irqreturn_t (*mach_process_int) (int, struct pt_regs *); |
| 76 | /* machine dependent timer functions */ |
| 77 | unsigned long (*mach_gettimeoffset) (void); |
| 78 | int (*mach_hwclk) (int, struct rtc_time*); |
| 79 | int (*mach_set_clock_mmss) (unsigned long); |
| 80 | unsigned int (*mach_get_ss)(void); |
| 81 | int (*mach_get_rtc_pll)(struct rtc_pll_info *); |
| 82 | int (*mach_set_rtc_pll)(struct rtc_pll_info *); |
| 83 | void (*mach_reset)( void ); |
| 84 | void (*mach_halt)( void ); |
| 85 | void (*mach_power_off)( void ); |
| 86 | long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ |
| 87 | #if defined(CONFIG_AMIGA_FLOPPY) || defined(CONFIG_ATARI_FLOPPY) |
| 88 | void (*mach_floppy_setup) (char *, int *) __initdata = NULL; |
| 89 | #endif |
| 90 | #ifdef CONFIG_HEARTBEAT |
| 91 | void (*mach_heartbeat) (int); |
| 92 | EXPORT_SYMBOL(mach_heartbeat); |
| 93 | #endif |
| 94 | #ifdef CONFIG_M68K_L2_CACHE |
| 95 | void (*mach_l2_flush) (int); |
| 96 | #endif |
| 97 | #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) |
| 98 | void (*mach_beep)(unsigned int, unsigned int); |
| 99 | #endif |
| 100 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) |
| 101 | int isa_type; |
| 102 | int isa_sex; |
| 103 | #endif |
| 104 | |
| 105 | extern int amiga_parse_bootinfo(const struct bi_record *); |
| 106 | extern int atari_parse_bootinfo(const struct bi_record *); |
| 107 | extern int mac_parse_bootinfo(const struct bi_record *); |
| 108 | extern int q40_parse_bootinfo(const struct bi_record *); |
| 109 | extern int bvme6000_parse_bootinfo(const struct bi_record *); |
| 110 | extern int mvme16x_parse_bootinfo(const struct bi_record *); |
| 111 | extern int mvme147_parse_bootinfo(const struct bi_record *); |
| 112 | extern int hp300_parse_bootinfo(const struct bi_record *); |
| 113 | |
| 114 | extern void config_amiga(void); |
| 115 | extern void config_atari(void); |
| 116 | extern void config_mac(void); |
| 117 | extern void config_sun3(void); |
| 118 | extern void config_apollo(void); |
| 119 | extern void config_mvme147(void); |
| 120 | extern void config_mvme16x(void); |
| 121 | extern void config_bvme6000(void); |
| 122 | extern void config_hp300(void); |
| 123 | extern void config_q40(void); |
| 124 | extern void config_sun3x(void); |
| 125 | |
| 126 | extern void mac_debugging_short (int, short); |
| 127 | extern void mac_debugging_long (int, long); |
| 128 | |
| 129 | #define MASK_256K 0xfffc0000 |
| 130 | |
| 131 | extern void paging_init(void); |
| 132 | |
| 133 | static void __init m68k_parse_bootinfo(const struct bi_record *record) |
| 134 | { |
| 135 | while (record->tag != BI_LAST) { |
| 136 | int unknown = 0; |
| 137 | const unsigned long *data = record->data; |
| 138 | switch (record->tag) { |
| 139 | case BI_MACHTYPE: |
| 140 | case BI_CPUTYPE: |
| 141 | case BI_FPUTYPE: |
| 142 | case BI_MMUTYPE: |
| 143 | /* Already set up by head.S */ |
| 144 | break; |
| 145 | |
| 146 | case BI_MEMCHUNK: |
| 147 | if (m68k_num_memory < NUM_MEMINFO) { |
| 148 | m68k_memory[m68k_num_memory].addr = data[0]; |
| 149 | m68k_memory[m68k_num_memory].size = data[1]; |
| 150 | m68k_num_memory++; |
| 151 | } else |
| 152 | printk("m68k_parse_bootinfo: too many memory chunks\n"); |
| 153 | break; |
| 154 | |
| 155 | case BI_RAMDISK: |
| 156 | m68k_ramdisk.addr = data[0]; |
| 157 | m68k_ramdisk.size = data[1]; |
| 158 | break; |
| 159 | |
| 160 | case BI_COMMAND_LINE: |
| 161 | strlcpy(m68k_command_line, (const char *)data, sizeof(m68k_command_line)); |
| 162 | break; |
| 163 | |
| 164 | default: |
| 165 | if (MACH_IS_AMIGA) |
| 166 | unknown = amiga_parse_bootinfo(record); |
| 167 | else if (MACH_IS_ATARI) |
| 168 | unknown = atari_parse_bootinfo(record); |
| 169 | else if (MACH_IS_MAC) |
| 170 | unknown = mac_parse_bootinfo(record); |
| 171 | else if (MACH_IS_Q40) |
| 172 | unknown = q40_parse_bootinfo(record); |
| 173 | else if (MACH_IS_BVME6000) |
| 174 | unknown = bvme6000_parse_bootinfo(record); |
| 175 | else if (MACH_IS_MVME16x) |
| 176 | unknown = mvme16x_parse_bootinfo(record); |
| 177 | else if (MACH_IS_MVME147) |
| 178 | unknown = mvme147_parse_bootinfo(record); |
| 179 | else if (MACH_IS_HP300) |
| 180 | unknown = hp300_parse_bootinfo(record); |
| 181 | else |
| 182 | unknown = 1; |
| 183 | } |
| 184 | if (unknown) |
| 185 | printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", |
| 186 | record->tag); |
| 187 | record = (struct bi_record *)((unsigned long)record+record->size); |
| 188 | } |
| 189 | |
| 190 | m68k_realnum_memory = m68k_num_memory; |
| 191 | #ifdef CONFIG_SINGLE_MEMORY_CHUNK |
| 192 | if (m68k_num_memory > 1) { |
| 193 | printk("Ignoring last %i chunks of physical memory\n", |
| 194 | (m68k_num_memory - 1)); |
| 195 | m68k_num_memory = 1; |
| 196 | } |
| 197 | m68k_memoffset = m68k_memory[0].addr-PAGE_OFFSET; |
| 198 | #endif |
| 199 | } |
| 200 | |
| 201 | void __init setup_arch(char **cmdline_p) |
| 202 | { |
| 203 | extern int _etext, _edata, _end; |
| 204 | #ifndef CONFIG_SUN3 |
| 205 | unsigned long endmem, startmem; |
| 206 | #endif |
| 207 | int i; |
| 208 | char *p, *q; |
| 209 | |
| 210 | /* The bootinfo is located right after the kernel bss */ |
| 211 | m68k_parse_bootinfo((const struct bi_record *)&_end); |
| 212 | |
| 213 | if (CPU_IS_040) |
| 214 | m68k_is040or060 = 4; |
| 215 | else if (CPU_IS_060) |
| 216 | m68k_is040or060 = 6; |
| 217 | |
| 218 | /* FIXME: m68k_fputype is passed in by Penguin booter, which can |
| 219 | * be confused by software FPU emulation. BEWARE. |
| 220 | * We should really do our own FPU check at startup. |
| 221 | * [what do we do with buggy 68LC040s? if we have problems |
| 222 | * with them, we should add a test to check_bugs() below] */ |
| 223 | #ifndef CONFIG_M68KFPU_EMU_ONLY |
| 224 | /* clear the fpu if we have one */ |
| 225 | if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { |
| 226 | volatile int zero = 0; |
| 227 | asm __volatile__ ("frestore %0" : : "m" (zero)); |
| 228 | } |
| 229 | #endif |
| 230 | |
| 231 | if (CPU_IS_060) { |
| 232 | u32 pcr; |
| 233 | |
| 234 | asm (".chip 68060; movec %%pcr,%0; .chip 68k" |
| 235 | : "=d" (pcr)); |
| 236 | if (((pcr >> 8) & 0xff) <= 5) { |
| 237 | printk("Enabling workaround for errata I14\n"); |
| 238 | asm (".chip 68060; movec %0,%%pcr; .chip 68k" |
| 239 | : : "d" (pcr | 0x20)); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | init_mm.start_code = PAGE_OFFSET; |
| 244 | init_mm.end_code = (unsigned long) &_etext; |
| 245 | init_mm.end_data = (unsigned long) &_edata; |
| 246 | init_mm.brk = (unsigned long) &_end; |
| 247 | |
| 248 | *cmdline_p = m68k_command_line; |
| 249 | memcpy(saved_command_line, *cmdline_p, CL_SIZE); |
| 250 | |
| 251 | /* Parse the command line for arch-specific options. |
| 252 | * For the m68k, this is currently only "debug=xxx" to enable printing |
| 253 | * certain kernel messages to some machine-specific device. |
| 254 | */ |
| 255 | for( p = *cmdline_p; p && *p; ) { |
| 256 | i = 0; |
| 257 | if (!strncmp( p, "debug=", 6 )) { |
| 258 | strlcpy( m68k_debug_device, p+6, sizeof(m68k_debug_device) ); |
| 259 | if ((q = strchr( m68k_debug_device, ' ' ))) *q = 0; |
| 260 | i = 1; |
| 261 | } |
| 262 | #ifdef CONFIG_ATARI |
| 263 | /* This option must be parsed very early */ |
| 264 | if (!strncmp( p, "switches=", 9 )) { |
| 265 | extern void atari_switches_setup( const char *, int ); |
| 266 | atari_switches_setup( p+9, (q = strchr( p+9, ' ' )) ? |
| 267 | (q - (p+9)) : strlen(p+9) ); |
| 268 | i = 1; |
| 269 | } |
| 270 | #endif |
| 271 | |
| 272 | if (i) { |
| 273 | /* option processed, delete it */ |
| 274 | if ((q = strchr( p, ' ' ))) |
| 275 | strcpy( p, q+1 ); |
| 276 | else |
| 277 | *p = 0; |
| 278 | } else { |
| 279 | if ((p = strchr( p, ' ' ))) ++p; |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | switch (m68k_machtype) { |
| 284 | #ifdef CONFIG_AMIGA |
| 285 | case MACH_AMIGA: |
| 286 | config_amiga(); |
| 287 | break; |
| 288 | #endif |
| 289 | #ifdef CONFIG_ATARI |
| 290 | case MACH_ATARI: |
| 291 | config_atari(); |
| 292 | break; |
| 293 | #endif |
| 294 | #ifdef CONFIG_MAC |
| 295 | case MACH_MAC: |
| 296 | config_mac(); |
| 297 | break; |
| 298 | #endif |
| 299 | #ifdef CONFIG_SUN3 |
| 300 | case MACH_SUN3: |
| 301 | config_sun3(); |
| 302 | break; |
| 303 | #endif |
| 304 | #ifdef CONFIG_APOLLO |
| 305 | case MACH_APOLLO: |
| 306 | config_apollo(); |
| 307 | break; |
| 308 | #endif |
| 309 | #ifdef CONFIG_MVME147 |
| 310 | case MACH_MVME147: |
| 311 | config_mvme147(); |
| 312 | break; |
| 313 | #endif |
| 314 | #ifdef CONFIG_MVME16x |
| 315 | case MACH_MVME16x: |
| 316 | config_mvme16x(); |
| 317 | break; |
| 318 | #endif |
| 319 | #ifdef CONFIG_BVME6000 |
| 320 | case MACH_BVME6000: |
| 321 | config_bvme6000(); |
| 322 | break; |
| 323 | #endif |
| 324 | #ifdef CONFIG_HP300 |
| 325 | case MACH_HP300: |
| 326 | config_hp300(); |
| 327 | break; |
| 328 | #endif |
| 329 | #ifdef CONFIG_Q40 |
| 330 | case MACH_Q40: |
| 331 | config_q40(); |
| 332 | break; |
| 333 | #endif |
| 334 | #ifdef CONFIG_SUN3X |
| 335 | case MACH_SUN3X: |
| 336 | config_sun3x(); |
| 337 | break; |
| 338 | #endif |
| 339 | default: |
| 340 | panic ("No configuration setup"); |
| 341 | } |
| 342 | |
| 343 | #ifndef CONFIG_SUN3 |
| 344 | startmem= m68k_memory[0].addr; |
| 345 | endmem = startmem + m68k_memory[0].size; |
| 346 | high_memory = (void *)PAGE_OFFSET; |
| 347 | for (i = 0; i < m68k_num_memory; i++) { |
| 348 | m68k_memory[i].size &= MASK_256K; |
| 349 | if (m68k_memory[i].addr < startmem) |
| 350 | startmem = m68k_memory[i].addr; |
| 351 | if (m68k_memory[i].addr+m68k_memory[i].size > endmem) |
| 352 | endmem = m68k_memory[i].addr+m68k_memory[i].size; |
| 353 | high_memory += m68k_memory[i].size; |
| 354 | } |
| 355 | |
| 356 | availmem += init_bootmem_node(NODE_DATA(0), availmem >> PAGE_SHIFT, |
| 357 | startmem >> PAGE_SHIFT, endmem >> PAGE_SHIFT); |
| 358 | |
| 359 | for (i = 0; i < m68k_num_memory; i++) |
| 360 | free_bootmem(m68k_memory[i].addr, m68k_memory[i].size); |
| 361 | |
| 362 | reserve_bootmem(m68k_memory[0].addr, availmem - m68k_memory[0].addr); |
| 363 | |
| 364 | #ifdef CONFIG_BLK_DEV_INITRD |
| 365 | if (m68k_ramdisk.size) { |
| 366 | reserve_bootmem(m68k_ramdisk.addr, m68k_ramdisk.size); |
| 367 | initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); |
| 368 | initrd_end = initrd_start + m68k_ramdisk.size; |
| 369 | printk ("initrd: %08lx - %08lx\n", initrd_start, initrd_end); |
| 370 | } |
| 371 | #endif |
| 372 | |
| 373 | #ifdef CONFIG_ATARI |
| 374 | if (MACH_IS_ATARI) |
| 375 | atari_stram_reserve_pages((void *)availmem); |
| 376 | #endif |
| 377 | #ifdef CONFIG_SUN3X |
| 378 | if (MACH_IS_SUN3X) { |
| 379 | dvma_init(); |
| 380 | } |
| 381 | #endif |
| 382 | |
| 383 | #endif /* !CONFIG_SUN3 */ |
| 384 | |
| 385 | paging_init(); |
| 386 | |
| 387 | /* set ISA defs early as possible */ |
| 388 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) |
| 389 | #if defined(CONFIG_Q40) |
| 390 | if (MACH_IS_Q40) { |
| 391 | isa_type = Q40_ISA; |
| 392 | isa_sex = 0; |
| 393 | } |
| 394 | #elif defined(CONFIG_GG2) |
| 395 | if (MACH_IS_AMIGA && AMIGAHW_PRESENT(GG2_ISA)){ |
| 396 | isa_type = GG2_ISA; |
| 397 | isa_sex = 0; |
| 398 | } |
| 399 | #elif defined(CONFIG_AMIGA_PCMCIA) |
| 400 | if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)){ |
| 401 | isa_type = AG_ISA; |
| 402 | isa_sex = 1; |
| 403 | } |
| 404 | #endif |
| 405 | #endif |
| 406 | } |
| 407 | |
| 408 | static int show_cpuinfo(struct seq_file *m, void *v) |
| 409 | { |
| 410 | const char *cpu, *mmu, *fpu; |
| 411 | unsigned long clockfreq, clockfactor; |
| 412 | |
| 413 | #define LOOP_CYCLES_68020 (8) |
| 414 | #define LOOP_CYCLES_68030 (8) |
| 415 | #define LOOP_CYCLES_68040 (3) |
| 416 | #define LOOP_CYCLES_68060 (1) |
| 417 | |
| 418 | if (CPU_IS_020) { |
| 419 | cpu = "68020"; |
| 420 | clockfactor = LOOP_CYCLES_68020; |
| 421 | } else if (CPU_IS_030) { |
| 422 | cpu = "68030"; |
| 423 | clockfactor = LOOP_CYCLES_68030; |
| 424 | } else if (CPU_IS_040) { |
| 425 | cpu = "68040"; |
| 426 | clockfactor = LOOP_CYCLES_68040; |
| 427 | } else if (CPU_IS_060) { |
| 428 | cpu = "68060"; |
| 429 | clockfactor = LOOP_CYCLES_68060; |
| 430 | } else { |
| 431 | cpu = "680x0"; |
| 432 | clockfactor = 0; |
| 433 | } |
| 434 | |
| 435 | #ifdef CONFIG_M68KFPU_EMU_ONLY |
| 436 | fpu="none(soft float)"; |
| 437 | #else |
| 438 | if (m68k_fputype & FPU_68881) |
| 439 | fpu = "68881"; |
| 440 | else if (m68k_fputype & FPU_68882) |
| 441 | fpu = "68882"; |
| 442 | else if (m68k_fputype & FPU_68040) |
| 443 | fpu = "68040"; |
| 444 | else if (m68k_fputype & FPU_68060) |
| 445 | fpu = "68060"; |
| 446 | else if (m68k_fputype & FPU_SUNFPA) |
| 447 | fpu = "Sun FPA"; |
| 448 | else |
| 449 | fpu = "none"; |
| 450 | #endif |
| 451 | |
| 452 | if (m68k_mmutype & MMU_68851) |
| 453 | mmu = "68851"; |
| 454 | else if (m68k_mmutype & MMU_68030) |
| 455 | mmu = "68030"; |
| 456 | else if (m68k_mmutype & MMU_68040) |
| 457 | mmu = "68040"; |
| 458 | else if (m68k_mmutype & MMU_68060) |
| 459 | mmu = "68060"; |
| 460 | else if (m68k_mmutype & MMU_SUN3) |
| 461 | mmu = "Sun-3"; |
| 462 | else if (m68k_mmutype & MMU_APOLLO) |
| 463 | mmu = "Apollo"; |
| 464 | else |
| 465 | mmu = "unknown"; |
| 466 | |
| 467 | clockfreq = loops_per_jiffy*HZ*clockfactor; |
| 468 | |
| 469 | seq_printf(m, "CPU:\t\t%s\n" |
| 470 | "MMU:\t\t%s\n" |
| 471 | "FPU:\t\t%s\n" |
| 472 | "Clocking:\t%lu.%1luMHz\n" |
| 473 | "BogoMips:\t%lu.%02lu\n" |
| 474 | "Calibration:\t%lu loops\n", |
| 475 | cpu, mmu, fpu, |
| 476 | clockfreq/1000000,(clockfreq/100000)%10, |
| 477 | loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, |
| 478 | loops_per_jiffy); |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | static void *c_start(struct seq_file *m, loff_t *pos) |
| 483 | { |
| 484 | return *pos < 1 ? (void *)1 : NULL; |
| 485 | } |
| 486 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) |
| 487 | { |
| 488 | ++*pos; |
| 489 | return NULL; |
| 490 | } |
| 491 | static void c_stop(struct seq_file *m, void *v) |
| 492 | { |
| 493 | } |
| 494 | struct seq_operations cpuinfo_op = { |
| 495 | .start = c_start, |
| 496 | .next = c_next, |
| 497 | .stop = c_stop, |
| 498 | .show = show_cpuinfo, |
| 499 | }; |
| 500 | |
| 501 | int get_hardware_list(char *buffer) |
| 502 | { |
| 503 | int len = 0; |
| 504 | char model[80]; |
| 505 | unsigned long mem; |
| 506 | int i; |
| 507 | |
| 508 | if (mach_get_model) |
| 509 | mach_get_model(model); |
| 510 | else |
| 511 | strcpy(model, "Unknown m68k"); |
| 512 | |
| 513 | len += sprintf(buffer+len, "Model:\t\t%s\n", model); |
| 514 | for (mem = 0, i = 0; i < m68k_num_memory; i++) |
| 515 | mem += m68k_memory[i].size; |
| 516 | len += sprintf(buffer+len, "System Memory:\t%ldK\n", mem>>10); |
| 517 | |
| 518 | if (mach_get_hardware_list) |
| 519 | len += mach_get_hardware_list(buffer+len); |
| 520 | |
| 521 | return(len); |
| 522 | } |
| 523 | |
| 524 | |
| 525 | #if defined(CONFIG_AMIGA_FLOPPY) || defined(CONFIG_ATARI_FLOPPY) |
| 526 | void __init floppy_setup(char *str, int *ints) |
| 527 | { |
| 528 | if (mach_floppy_setup) |
| 529 | mach_floppy_setup (str, ints); |
| 530 | } |
| 531 | |
| 532 | #endif |
| 533 | |
| 534 | void check_bugs(void) |
| 535 | { |
| 536 | #ifndef CONFIG_M68KFPU_EMU |
| 537 | if (m68k_fputype == 0) { |
| 538 | printk( KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " |
| 539 | "WHICH IS REQUIRED BY LINUX/M68K ***\n" ); |
| 540 | printk( KERN_EMERG "Upgrade your hardware or join the FPU " |
| 541 | "emulation project\n" ); |
| 542 | panic( "no FPU" ); |
| 543 | } |
| 544 | #endif /* !CONFIG_M68KFPU_EMU */ |
| 545 | } |